MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa9692c1769e25297176b847f4274570c56c4d74f4577608bd036e72d82d5bdb. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 11


Intelligence 11 IOCs YARA 1 File information Comments
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SHA256 hash: aa9692c1769e25297176b847f4274570c56c4d74f4577608bd036e72d82d5bdb
SHA3-384 hash: 07ab19beb798b3a160e0099cbb0dcaf9353c68b46ea421c824e8f830408ddc68deb160676bbe4772b8844707f99616db
SHA1 hash: 0c19b6f7b14385e2f5d39a34153a0cadf53d0e7d
MD5 hash: f3d4464384511dae6a852ff484aa2f89
humanhash: minnesota-california-fourteen-sweet
File name:RFQ for Machine (Vision Semicon).exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'028'608 bytes
First seen:2021-03-16 10:22:13 UTC
Last seen:2021-03-16 15:04:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:4nmjCKfoTvd4bZ10CPy0fPJDZ8NXBSfMC5m1:Gvd4bZ10Cn8NXBGMB
Threatray 4'177 similar samples on MalwareBazaar
TLSH 4C257A22E664ABB0F03D73754472133053FDAD0A9222E6BD7D8871DA05B5AC585F3EB2
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: vm1915328.41ssd.had.wf
Sending IP: 193.169.105.146
From: Han Loon Seow <Han.Loon.Seow@wdc.com>
Subject: RE: RFQ for Machine (Vision Semicon)
Attachment: RFQ for Machine Vision Semicon.rar (contains "RFQ for Machine (Vision Semicon).exe")

Intelligence

File Origin
# of uploads :
3
# of downloads :
118
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ for Machine (Vision Semicon).exe
Verdict:
Suspicious activity
Analysis date:
2021-03-16 10:26:31 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/2bb9d7f5-309f-4b58-a281-b4ab16179738

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.11672.25800.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/39ae0438-5e31-4ec4-a6e5-523a4949e350
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/640552
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 369250 Sample: RFQ for Machine (Vision Sem... Startdate: 16/03/2021 Architecture: WINDOWS Score: 100 34 www.memento2study.com 2->34 36 memento2study.com 2->36 40 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->40 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 7 other signatures 2->46 11 RFQ for Machine (Vision Semicon).exe 3 2->11         started        signatures3 process4 signatures5 54 Injects a PE file into a foreign processes 11->54 14 RFQ for Machine (Vision Semicon).exe 11->14         started        process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 17 explorer.exe 14->17 injected process8 dnsIp9 28 www.inokchung.com 35.169.40.107, 49740, 80 AMAZON-AESUS United States 17->28 30 www.lexingtonparkdefensejobs.com 17->30 32 www.crcexch.com 17->32 38 System process connects to network (likely due to code injection or exploit) 17->38 21 explorer.exe 17->21         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50 52 Tries to detect virtualization through RDTSC time measurements 21->52 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/aa9692c1769e25297176b847f4274570c56c4d74f4577608bd036e72d82d5bdb/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-03-16 10:23:07 UTC
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vkljfqlwtysss4lwxbd7ij2fodcwytlu6rlxmcf5anxhfwbnlpnq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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06fa1b160e322bd7710c9110b1e4e873795b5c2680b8bbe70bbaf23484533459
Formbook
11f06223417d6045acaa15cf7f5515d9afdfc23590c9cd021c2ae90a736bb6cd
Formbook
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6c131f342e8226706ba1b39cc955852b022130c14ea12bd3b3cf340bbea25bf6
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988d84650b91424e291cb84ef84433cbd4214622365b226d925d71ffda0bccb8
Formbook
9dac57302e2261a1a3c6a665d3960525b27fb70a1fd6b1e135a3e72f11c6f3e6
Formbook
b12941d367baf1228f6d262c4696b267cd1d36e600742aaf1fee00582fe1ea07
Formbook
b7d74de8e9514ca3fbfa4676be4433069bc913f86953a79d40c6272d5077242c
Formbook
f39b9e8c4a9aa6d8cd9f069e8a8ee81a3f666e07071f2b4673aa42633026736c
Formbook
+ 4'167 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210316-lkgcdft6fe/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.jackrussellclothing.com/4ojc/
Unpacked files
SH256 hash:
2b43013edb5706a946f4e523a1a219b31fe2a7e05c48884c048882b3c1327655
MD5 hash:
b7159eb14fe565d4e233604b629bbd8a
SHA1 hash:
64f82c67e6c7cbc078141162a49bffcee3d9ebb9
Link:
https://www.unpac.me/results/f33847fb-f4ea-49d0-921a-02f0f46c5624/
SH256 hash:
aa9692c1769e25297176b847f4274570c56c4d74f4577608bd036e72d82d5bdb
MD5 hash:
f3d4464384511dae6a852ff484aa2f89
SHA1 hash:
0c19b6f7b14385e2f5d39a34153a0cadf53d0e7d
Link:
https://www.unpac.me/results/f33847fb-f4ea-49d0-921a-02f0f46c5624/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.40
Link:
https://yomi.yoroi.company/submissions/aa9692c1769e25297176b847f4274570c56c4d74f4577608bd036e72d82d5bdb

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

rar 3890c59b3745da2f923a62c53e299e35eb44e1cb49da0e42619e7127f0461cc6

Formbook

Executable exe aa9692c1769e25297176b847f4274570c56c4d74f4577608bd036e72d82d5bdb

(this sample)

  
Dropped by
MD5 7c2ee73e174730cae4c500f6537b6842
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 3890c59b3745da2f923a62c53e299e35eb44e1cb49da0e42619e7127f0461cc6

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